Fits checked Oct 1, 2026 · How we check
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Blueair · air purifier

Blueair Classic 403 replacement filter

Use part 402PF. Interval not published by the maker.

The filter that fits

Maker lists this model

Blueair Classic 400 Series Particle Filter

Classic 400 Series Particle Filter

Part number
402PF
How many
1 per unit
How often
Interval not published by the maker

Blueair does not state how many of these filters the unit holds; the count of one shown here is not stated by the maker.

Buy Classic 400 Series Particle Filter on AmazonManufacturer page

Opens an Amazon search for Blueair Classic 400 Series Particle Filter 402PF. Check the listing says 402PF.

See the sources

Does your exact model share this filter?

Blueair labels several versions of the Classic 403. Check the label on your unit.

  • Classic 403 takes 402PF
  • 402 same filter
  • 405 same filter
  • 410 same filter
  • 450E same filter
  • 455EB same filter
  • 480i same filter
  • Classic 401 not confirmed by Blueair · In the demand list but not named on Blueair's 400 series filter page.

Look-alike models that take a different filter

The Classic 200 series takes 201PF and the Classic 500/600 series takes 501PFK.

Other genuine options from Blueair

Variants and kits the maker sells for this model. Same fit, different media or packaging.

Sources

High confidence: the manufacturer names this exact model on a live page. Each line is the page we read and the day we read it.

  • Which filter fits blueair.com Maker's own page checked Oct 1, 2026
    This filter is compatible with the following Classic family models: 402, 403, 405, 410, 450E, 455EB, 480i.
  • How often blueair.com Maker's own page checked Oct 1, 2026
    A filter change indicator light that will alert you when it's time to replace the filter. (no month figure given)
Show all 3 sources

Which filter fits

  1. blueair.com Maker's own page checked Oct 1, 2026
    This filter is compatible with the following Classic family models: 402, 403, 405, 410, 450E, 455EB, 480i.
  2. blueair.com Maker's own page checked Oct 1, 2026
    Classic 400 Series Particle Filter, sku 402PF

How often

  1. blueair.com Maker's own page checked Oct 1, 2026
    A filter change indicator light that will alert you when it's time to replace the filter. (no month figure given)